Year	kt
1990	3201.15
1991	3193.42
1992	3128.17
1993	2690.49
1994	2054.7
1995	2634.81
1996	3168.04
1997	3266.223
1998	3875.7
1999	3961.8
2000	4346.986
2001	4243.5
2002	2755.2
2003	3224.9
2004	3514.5
2005	4313.23
2006	4777.96
2007	4150.72
2008	4360.59
2009	4838.56
2010	5423.35
2011	5383.97
2012	5260.75
2013	5311.61
2014	5175.1
2015	5655
2016	5497.6
2017	5406.7
2018	6216.9
2019	7006.1
2020	7153.9